Logical Link Control Article Index for
Logical
Shopping
Logical
Website Links For
Logical
 

Information About

Logical Link Control




The LLC sublayer is primarily concerned with
  • multiplexing protocols transmitted over the MAC layer (when transmitting) and demultiplexing them (when receiving)

  • optionally providing flow control, and detection and retransmission of dropped packets, if requested


The protocol used in IEEE 802 networks, and in some non-IEEE 802 networks such as FDDI , for LLC is specified by the IEEE 802.2 standard.

Some non-IEEE 802 protocols can be thought of as being split into MAC and LLC layers. For example, while HDLC specifies both MAC functions (framing of packets) and LLC functions (protocol multiplexing, flow control, and detection and retransmission of dropped packets), some protocols such as Cisco HDLC can use HDLC-like packet framing and their own LLC protocol.